Results 11 to 16 of 16
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21 April 2019 #11
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21 April 2019 #12
- Join Date
- 07 Jun 2013
- Location
- Wausau, WI
- Posts
- 192
- Saab(s)
- 2006 Saab 9-5, 2004 Saab 9-5 Aero; 2002 9-3 HOT Hatch
Thanks for setting me straight!
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09 July 2019 #13
- Join Date
- 14 Aug 2017
- Location
- Austin, Tx
- Posts
- 3
- Saab(s)
- 2004 Saab 9-5
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24 July 2019 #14
- Join Date
- 02 Oct 2016
- Location
- Massachusetts
- Posts
- 10
- Saab(s)
- 2008 Saab 9-5
OP, I didn't see you mention the O2 sensor (fuel/air ratio sensor).
The MAF sensor measures the airflow into the engine, the fuel/air ratio sensor measures the combustion efficiency and the ECU adjusts the fuel trim accordingly.
Your problem is probably a bad O2 sensor. However, before you replace it make sure there are no air leaks between the MAF and the intake manifold and check the two large o-rings at the throttle body. Also look for exhaust leaks upstream of the O2 sensor. If that all checks out, replace the O2 sensor. Buy a Saab OEM sensor, no aftermarket.
Final thing to do after that if still no joy is install a new OEM MAF sensor.
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24 July 2019 #15
- Join Date
- 07 Jun 2013
- Location
- Wausau, WI
- Posts
- 192
- Saab(s)
- 2006 Saab 9-5, 2004 Saab 9-5 Aero; 2002 9-3 HOT Hatch
Hows tire pressure?
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10 August 2019 #16
- Join Date
- 08 May 2012
- Location
- Montgomery , Al
- Posts
- 22
- Saab(s)
- 2004 9 -5 Aero
I would only get the recommended platinum plugs. I tried something along the lines of iridium and did not get better results at all. Quality tires and air pressure helps too. Also check your vaccum lines and connections
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